Wiotor for engine-governors



4 Sheets.

(No Model.)

Sheet 1.

0.1 R. MARTIN. MOTOR FOR ENGINE GOVERNORS.

Patented Oct. 30, 1894.

( 1 10 Model.) 4 Sheets-Shea: 2.

G. E. R. MARTIN. MOTOR FOR ENGINE GOVERNORS. lE. 528,274. PatentedOot. 30, 1894.

0; E. R. MARTIN.

MOTOR FOB. ENGINEGOVERNORS.

4 SheetsSheet 3,

(No Model.)

No. 528,274; Patented Oct. 30, I894.

(No Model.) 4 Sheets-Shet 4.

G. E. R. MARTIN.

O MOTOR FOR ENGINE GOVERNORS. NO. 528,274. Patented Oct-3 0, .1894.

vention.

ATENT Fries,

MOTOR FOR ENGINE-GOVERNORS.

SPECIFICATION forming part of Letters Patent No. 528,274, dated October 30, 1 894.

Applica ion le February 20, 1894. Serial No. 500,375- (NO model.)

To all-whom 52'; may concern:

Be it known that I, CARL E. R. MARTIN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certainnew and useful Improvements in Motors for Engine-Governorsfof which the following is a specification, reference being had therein to the accompanying drawings. v

lliyinventiou relates to certain, improvements'ln governors of that class illustrated in the application for Letters Patent filed by me on February 1, 1893, under Serial No. 460,516, and it consists more particularlyin the construction and arrangement of the mechanism or motor for regulating the extent of movement of the primary valve, rod

of a governor of this type.

The invention further consists incertain improvements in the construction of the governor, as more fully set forth hereinafter.

In the accompanying drawingsz-Figure 1, is, a sectional plan view, on the line 11, Fig. 2, of a regulatingdevice constructed in accordance with my invention. Fig. 2, is a sectional elevation of thesame, onthe line 22, Fig. 1. Fig. 3, is an end elevation of the same. Fig. 4, is a plan view; Fig. 5, is a sectional plan on the line -55, Fig. 6, of a modified construction of a portion of the in- .Fig. 6, is an elevation of the same.

The device as shown in the accompanying drawings, is intended more especially for use as a governor for a stationary engine, but it may be employed in almost any connection as a regulating device for motors of any con: struction.

Referring to the drawings, A', represeuts'a casing within which are portions of the mechanism, while its exterior is so arranged as to form a support or hearing for other portions of the same, so as to form a compactstructure.

In the casing, A, is formed a cylinder, B, in which is contained a piston, B, from which extends a piston rod I), connected by rodsb, to a pin 0 carried. by arms C pivoted to the upper portion of the casing. To one of the arms is secured a bar, C, connected either directly or indirectly to the link block of the engine. The movement of the piston in one direction or the other will effect a corresponding movement of the link block, and effects .a decrease or increase in the speed of the engine. The piston is operated by the admission to the cylinder of a greater or less quantity of an actuating fluid, and the mechanism is designed to regulate the admission of the actuating fluid. Adjoining the cylinder, B,

one of,the arms 0.

On a lugf on the casing, are pivoted the handled lever, F, and a lever, G, one end of which is connected to the lever, F by a screw a sufficient distance into an opening in the lever, G, to firmly engage the two, but in such manner that by a few turns of the screw, the lovers may be disconnected and the handled lever, F, be made. to operate through rods e and d on the valve, D, to admit sufli- .cient fluid into the cylinder to shift the link block and reverse the engine. From the opposite end of the lever, G, extends a rod, G to one arm of a bell crank lever, G fulcrumed within the casing, A, the opposite bifurcated arm of the lever carrying a yoke h adapted to a groove in a nut, H, on a threaded shaft, I, and the position of this nut determining .the extent of movement of the valve,

D, and the consequent shifting of the link block. c

The casing, A, forms a bearing for the shaft, I, which carries at one end a loose pulle'y, 1', connected to the shaft by a pawl 1' carried by the pulley and adaptedto engage with a ratchet wheel 1" carried by the-shaft, so that the shaft may be turned in one direction only, viz:tvhen the engine is running forward. 1 to a pulley on the main shaft of the engine so as to be driven at the same speed with such shaft.

At a point within the casing, there is se curcd to the shaft, I, a pinion-I meshing with a gear, ,I, running looselyon a shaft, K, and on the threaded portion of the shaftyl,

This pulley is connected by a belt,

forming the subject of the present invention g adapted to the lever, F, and extending for 2 oaaeva is the nut, II, having peripheral gear teeth by a coiled compression spring h. In this engaging with a gear wheel, L, fast to the manner the movements'ot the gear, L, are Q shaft, K. transmitted by friction to the nut, H, and in 70 The shaft, K, finds a needle hearing at one case the engine runs away or is broken down end in a. recess in the casing, A, and at its suddenly, the gear Wheel. will not he hrolreu opposite end is adapted to the recessodend It will he noted that the pinion l is atrille of an adjustable sleeve, M, the latter being largerin diameter than the not ill and that;

threaded for a portion of its length and be the gear wheel J is a trifle smaller in diarnc 75 ing, adjusted by means of a handle, m, its ter than the gearwhcel l1, so that thc'hub'll' extreme inner end impinging against the will normally tend to move away from the gear wheel, J, for a purpose more fully set hollow drnrn'l toward the adjusting screw ll/l. forth hereinatter In operation, the hub, lyl, is, at starting,-

The shaft, K, is threaded for a portion of close to thedrum, P, but immediately moves, So its length, and on such threaded portion is a when turned by frictional engagement with recessed hub, N, having an annular flange thegear wheel, .l, to such a distanocalong the or disk n from which project pins n adapted threaded shalt,l l,thatiti'orces the clears/heel;

to tubes, 0, carried by a drum, 1?, mounted into contact with the adjustable sleeve, M,

loosely on the shaft, K. which stops its further movement. The rota- 8 5 The hub, N, is provided with an outwardly tion of the hub continues until moving Earprojecting annular flange n, and the gear ther along the shaft, K, the friction rings is wheel, J, has a similar inwardly projecting are moved octet contact with each other, the

E flange j, the two forming friction faces he sp1*ing,(,1',beingcompressed. 'l:lllifii lIfllliillUVQ- tween which are friction rings a, alternate ment has however, wound. up the spring, in 90 rings being secured respectively to the gear the drum, P, the latter heingtnrned with the and hub. "he gear wheel 3', has a recessed huh, N, by the pins or, and so soon as the hub hub fitting overthe end of the hub, N, and isdisengaged from the gear wheel, the spring Surrounding the latter is a ring, Q, between acts through the drum and pins n to rctuvn which and the hub, N, is a coiled spring, Q, it partly to its original rotation, and the bal- 95 which, tending" to normally separate the hu b, ance wheel, it keeps it going steadily tond- N, from the gear wheel, J,forees the friction ing to counteract the movement of the nut in faces and friction rings a into intimate conthe opposite direction along the shaft," The tactand transmits the movements of the gear parts in this way, after running; for a few Wheel to the hub, and through the pins ll of turns,are lIlzlitlllGed and do not move further KOO the latter to the drum, P. while the engine maintains an even speed. The. drum, 1?, is provided with a volute The speed may be increased by inovln r the spring p having its ends connected respectslecre,lll, a short. distance fartherarray %IUlll ively to the inner peripheryof the drum and the hub, N, as the spring will then, being the shaft, in such manner that the first moveturned more, be wound tighter. to ment of the drum will partly wind up the. In case ot a break down of the engine, the spring, and then through the spring transmit shaft, l, ceases to rotate, as does also the gear the relative movement to the shaft, K, the wheel, J, and the action of the spring 10 will movements of the latter being; transmitted then cause the hub to move rapidly toward. through thegeanl' totho nut,ll,the direction the drum. To avoid egtceesive friction in r to of rotation of the latter being directly opposuch cases, the ring, Q, is connected by plus site to the direction of rotation of the threaded s to lovers, 5, fulcruined in standards on the shaft,l,on which it is mounted,audtl1e not rehub N, and having short arms projecting untaining the same or practically the same poder the headed ends of the pins and longer sition on the shaft until the speed of the latarms proj acting; into the path of the tubes, 0, r15

ter is increased ordiminiched by the corre so that as the hub moves toward the drum, spending movement of the engine. P, the ring, Q, will also be moved in the same 1 Near one end of the shaft, K, is a gear direction,but eta greater speed,and the force wheel, B, meshing with a pinion r on a coon ot the spring will. then be taken up between tel-shaft, R, on which is also secured a tly the hub, and the ring, Q, and removed from ice wheeLRZfor balancing the movemontot'the' the gear wheel, ,l'. l

parts, and to keep the ehaft,K, in motion for The various parts of the device contained a short time in casejhe engine breaks down, within the casing are submerged in. oil, so so as to avoid any sudden stoppage 0r accithat they may run more readily and without dental breakage of the parts. Asa further any attention. I precaution against breakage, the'nut, H, is It willbennderstood that pulleys connected. constructed as more clearly shown in Fig. 1, by belting maybe substituted for the various comprisingopposite end dish portions 72 h gear wheels described, hut the latter are prejoined by a hub 72?, while the gear teeth are terred the ll'tOVBilltillli is more positive. provided onau encircling ring h adaptedto in Figs. 5 and 6, i hate illustrated-a urodi rye these end portions and having an inwardly lied construction, in which the hub, ll, is in projecting flange it, between which and the the form olf dish: having ratchet teeth '6, disk h are a number of friction ringer it held with which are adapted to copra-pro per ls, Ti",

i in contact with each other and with the flange pivoted at i to the gear wheel, J, the pawls l y l being so arranged that but; one is in action at a time while its fellow is midway between two teeth. On the opposite side of the gear wheel, arms, T, are secured to the pins 1, and carry at theirouterends anti-friction rollers u adapted to engage a roller, 'L', held on an adjustable spindle, M, the position of which may be adjusted to permit the rollers to come into contact with the roller, U, at any desired point. The roller, U, is held on a pin at the end of the spindle, M, by aspring It which may yield if the rollers it touch its inner face before engagin it: p iphery. In operation, each time the rollers u striKe the roller, If, the pawis are lifted out of engagement ith the teeth of the ratchet wheel, and permit the spring of the drum to re urn the disk part way, the pitch of the teeth being such that at each movement of the pawl, the disk will be moved backward a distance slightlygreater than the increased forward movement given it by reason of the difference in diameter of the rear wheels as previously described.

I claim as my invention- 1. The combination of the threaded shaft I, a nut thereon operatively connected to a governing device, a, threaded shaft K, a threaded hub mounted thereon, a loose gear wheel mounted on the shaft K and adapted to r0 tatc said hub, means for rotating the shaft K, means for rotating the gear wheel, and an adjusting screw or sleeve adapted to regulate the longitudinal movement of the pulley.

The combination of the threaded shaft I, a nut thereon operatively connected to a governing device a, threaded shaft K, means for rotating the same, a hollow drum mounted on .the shaft K, a volute spring connecting the drum and the shaft, a hub mounted on the shaft K and engaging the hollow drum, a gear wheel in frictional engagement with the said hub, and means for rotating said gear wheel.

3. The combination of the threaded shaft I, a nut thereon operatively connected to a governing device (L, threaded shaft K, means for rotating the same, a hollow drum on said shaft provided with tubes or transverse openings around its circumference, a i'rubniovinglongitudinally on the shaft K and provided with a series of pins engaging the openings in the drum, a gear wheel loosely mounted on the shaft K and in frictionalengagement with the hub, and means for rotating said gear wheel.

4. The combination of the threaded shaft I, a nut thereon operatively connected to a governing'devicea, threaded shaft K, the hollow drum, the spring connect-ing said drum and shaft, the hub mounted on the shaft, the gear wheel loosely fitted on the shaft K, a ring Q, provided with pins extending through the hub, levers pivoted on the hub anl engaging said pins, and a spring arranged between the ring and the hub and holding the ring normally against the gear wheel.

-5. The combination of the threaded shaft,

a nut thereon operativelyconnected to agoverning device, a threaded shaft. as K, a hub mounted thereon, means for connect-ing said 11 oh to a rotated wheel, a spring drum, a spring connecting said drum to the shaft, K, and a gear wheel mounted on the shaft, K, and intermeshing with gear teeth provided on said nut", substantially as specified. 0. The combination of the threaded aft, means for rotating the same, a nut on said threaded shaftoperativcly con nected to a governing device, a pinion secured to said shaft,

a second threaded shaft, Ix, a gear Wheel loosely mounted thereon and intermeshing with said pinion, a hub mounted on said threaded shaft, it, means for clutching the hub to said gear wheel, a hollow drum also loosely mounted on shaft, It, .1 volute spring connecting the drum to the shatt, means for operatively connecting the hub to said drum, and a gear wheel secu red to said shaft, l\, and meshing with gear teeth provided on said nut, substantially as specified.

7, The combination of the threaded shaft, a nut thereon operatively connected to a governing device, a threaded shaft, as K, a hub mounted thereon, means for connecting said hub to a rotated wheel, a springdrum, a spring connecting said drum to the shaft, K, a gear wheel secured to the shaft, K, and inter-meshing with gear teeth provided on the said nut, a countershaf t, a balance wheel secured thereon, and gearing connccting said eountershaft to the shaft, K, substantially as specified.

8. The combination of the threaded shaft, means for rotating the same, a not on said threaded shaft operatively connected to a governing device, a pinion secured to said shaft, a second th eaded shaft, K, a gear wheel loosely mounted thereonv and intermeshing with said pinion, a hub mounted on said threaded shaft, K, friction rings situate between said hub and gear wheel, a spring normally tending to force said friction ringsinto intimate contact with each other, a hollow drumalso loosely mounted on said shaft, K, a volute spring connecting the drum to the shaft, means for operatively connecting the hub to said drum, and a gear wheel secured to said shaft, K, and meshingwith gear teeth provided on said nut substantially as specified.

t). The combination of the threaded shaft, means for rotating the same, a nut on said threaded shaft operatively connected to a governing device, a pinion secured to said shaft, a second threaded shaft, K, a gear wheel loosely non'ntod thereon and intermeshing with said pinion, a hub mountedon said threaded shaft, K, friction rings-situated between said hub and gear wheel,a spring normally tending to force said friction rings into intimate contact with each other, a hollow drum also mounted on said shaft,-K, a volute spring connecting the drum to the shaft, ttibesprovidod on said drum, pins 12/ I projecting from the hub and adapted to engage in said tubes, pivoted levers carr ed hy said hub and adapted to be acted upon by the drum to move the spring out of contact with the gear wheel, and a gear wheel, L, se-

cured to said shaft,K, and inte i'meshing with geair teeth on said nnt,snbstantiallyas specier i 10. The combination of the threaded shaft 1, a nut thereon operatively connected to a governingdevice, the threaded shaft'K, the gear wheel J thereon, the spring drum I and its connected parts, ahub N, mounted on the shaft K, an annular flange n on said hub, an annular flangej on the gear wheel, a series of friction rings situate between said flanges, a loose ring, Q, hearing against the hub of the gear wheeha compression spring extending between the huh and said ring, Q, the bars 3 connected to said ring, and levers, S, fulcrnmod to the hub and adapted to act upon said bars and ring, Q, when depressed by thespring drum, substantially as specified.

11. The combination with the nutfll, and its shaft, of its gear wheel, J, means for re volving the same, the huh, N, the threaded shaft on which said gear wheel and hub are mounted, means for connecting the hub to. the gear Wheel and for transmitting the retations of the latter to the nut, II, and an adjusting sleeve, as M, for regulating the ex- 30 tent of movement of saidgear Wheel, J, substantially as specified. i t

12. The combination of the threaded shaft,

I, the sectional nut, H, thereon, comprising opposite end disk portions h, haconnecting 3 5 sleeve 7%, gear teeth It carried by the disk portions, and spring actuated friction rings connecting the disk portions to the gear teeth, substantially as specified.

13. The combination of the cylinder, B, its 40 piston, levers connecting the piston to governing lovers, the crossbar, E, hevalve rod cl connected thereto, the rod e extending from said cross bar to a sliding block ounce of said governinglevers, a lever, G,fn1crumed 45 to the frame, and connected at one end to the governing mechanism, a handled reversin g lever, F, detachahly connected'to the'lever, G, and arod c connecting" said lever, F,

to the cross bar, E,-suhstantiaily as specified. 5a

in testimony whereof I ai'firr my signature in the presence of two witnesses;

CARL E. R. MARTIN Witnesses:

ERNEST Lownnoannn, Joe. S. Messiah. 

